Many Eclipse projects release annually in June. The 2010 version of this simultaneous release is known as "Helios" and is made up of 39 projects and 33 million lines of code. The foundation of these projects is the Eclipse project itself, producing the Eclipse SDK which contains the Eclipse Platform, the Eclipse Java Development Tools (JDT), and the Eclipse Plugin Development Environment (PDE).

This Fedora feature encompasses the updating of the Eclipse packages in Fedora to be their Helios versions. Note that not all eclipse-* packages in Fedora are hosted at eclipse.org which coordinates the simultaneous release so this feature does not include them (notable examples include PyDev which is shipped in Fedora as eclipse-pydev).